The package supports XeTeX' (and other putative future similar engines')
need for Unicode characters, in a similar way to what the fontenc does
for 8-bit (and the like) fonts: convert accent-glyph sequence to a
single character in the output encoding.

Log message:
Import tex-xunicode-0.91 as print/tex-xunicode.
The package provides access to latin accents and many other characters
in the Unicode lower plane. This package is designed to work with TeX
engines that directly process UTF8 input and use Unicode and OpenType
fonts.